Unlock instant, AI-driven research and patent intelligence for your innovation.

Drilling-used downhole hydraulic oscillator simulation test device and test method thereof

A technology of hydraulic oscillator and simulation test, which is applied to measurement devices, pressure difference measurement between multiple valves, instruments, etc., can solve the problems of lack of test and evaluation equipment and methods, accurate calculation, etc., and achieve real-time monitoring and post-event analysis. Effect

Active Publication Date: 2015-12-23
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF13 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above parameters cannot be accurately calculated through theoretical models, and there are no ready-made test and evaluation equipment and methods

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drilling-used downhole hydraulic oscillator simulation test device and test method thereof
  • Drilling-used downhole hydraulic oscillator simulation test device and test method thereof
  • Drilling-used downhole hydraulic oscillator simulation test device and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 2 Shown is a schematic diagram of the appearance and structure of the hydraulic oscillator. As shown in the figure, the hydraulic oscillator is composed of a central pipe where the upper joint is located and an outer cylinder where the lower joint is located. Its movement principle is through the lower joint of the upper joint 28 and the outer cylinder 29 Connected into the drilling string, using the water flowing in from the direction of the upper joint, the center pipe of the hydraulic oscillator and the outer cylinder 29 produce axial relative reciprocating motion.

[0031] Such as figure 1 As shown, this kind of downhole hydraulic oscillator simulation test device for drilling includes a guiding system, a displacement sensing system, a circulating liquid feeding test system, and a data acquisition and analysis system arranged on a fixed frame 19, wherein:

[0032]Described guide system comprises guide frame 1, double-acting hand pump 5, double-actin...

Embodiment 2

[0041] Test a hydraulic vibrator that is ready for construction work, and judge whether the hydraulic vibrator meets the operation requirements. The specific steps of the test are as follows:

[0042] S1. Connect and assemble the guiding system, displacement sensing system, circulating liquid feeding test system, and data acquisition and analysis system of the downhole hydraulic oscillator simulation test device for drilling with the hydraulic oscillator to be tested, and adjust the size of the upper and lower clamps and Ensure that the liquid supply system is normal, and ensure that the signal acquisition of the dynamometer 9, the front sensor 17, the displacement sensor 21, the end pressure sensor 25 and the flow meter 27 in the data acquisition and analysis system is normal;

[0043] S2. Simulation test experiment: add water to the filling port of the double-acting hand pump and press the double-acting hydraulic hand pump 5 by hand, and act on the double-acting hydraulic cyl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a drilling-used downhole hydraulic oscillator simulation test device comprising a guidance system, a displacement sensing system and a circulation liquid supply test system which are arranged on a fixing frame, and a data acquisition and analysis system. The guidance system is arranged at the front end of the fixing frame and supplies a power source to a hydraulic oscillator for reciprocating movement along an axial direction. The displacement sensing system is arranged on the upper connector and the side wall of the external cylinder of the hydraulic oscillator fixed in the fixing frame to measure displacement change between the upper connector and the external cylinder of the hydraulic oscillator under the push effect of the guidance system. The drilling-used downhole hydraulic oscillator simulation test device and the method thereof are used for simulating the working parameters of the hydraulic oscillator under the effect of downhole pre-stressing force so that the basis can be provided for the design of oscillation type special downhole tool work, onsite development and adjustment of tool structural parameters and construction technology.

Description

technical field [0001] The invention relates to the field of oil and gas field exploitation, in particular to a simulation test device for a downhole hydraulic oscillator for drilling and a test method thereof. Background technique [0002] During the drilling process of oil and gas field development, the drilling tool assembly or the drill pipe is in contact with the well wall, resulting in a large frictional resistance between the drilling tool and the well wall, which increases the loss in the process of bit pressure transmission and reduces the drilling efficiency; As the length of the horizontal section is lengthened, there are more and more phenomena of depressurization, sticking, and tool loss, which greatly limit the drilling speed and restrict the extension of the horizontal section length. Therefore, how to reduce the resistance, realize rapid drilling and increase the length of the horizontal section of the well become the focus of attention of the industry. Unde...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01L13/00G01L1/02
Inventor 冯强张文华柳鹤吴欣袁于志强王瑶
Owner BC P INC CHINA NAT PETROLEUM CORP